Requirements for the transformation of underground garage LED lighting schemes
The power consumption of underground garage lighting is essentially a power management issue. With a little carelessness, many lighting fixtures become "eternal lights". The permanent light not only consumes a lot of power, but also causes frequent failures of the entire lighting system and a significant increase in maintenance costs. Therefore, the general conditions of many underground garage lighting are characterized by high power consumption, frequent problems, difficult management, high maintenance costs, and constant failures. Conventional energy-saving technical solutions for underground garage lighting systems. In order to solve this series of problems, the first thing to consider is the management of the ever-bright lights. To this end, many professionals have put forward many plans.
The common way to control the lighting time is to turn on all the lights in time intervals, that is, turn on all the lights during the day and the first half of the night, and turn off half of the lights in the second half of the night. Because the time is too short, the energy-saving effect of this method is also very limited. Not suitable for underground garage lighting renovation.
This method is simple and easy to implement and can obviously reduce the power consumption of underground garage lighting projects. However, because China has relevant requirements for the illuminance data of public lighting, especially the "Architectural Lighting Design Standard" was promulgated in 2004. Compared with the previous standards, the requirements for contrast are higher. Therefore, the feasibility of using this method is very limited. If the number of lighting fixtures is excessively reduced, the illuminance of the entire lighting system will not meet the standard. In addition to standard restrictions, reducing the number of lamps will reduce the illuminance and increase safety hazards. It is also not suitable for the underground garage lighting renovation program.
Infrared or microwave detectors are used in conjunction with fluorescent lamps. Infrared or wave detectors are installed on each fluorescent lamp. When a person or vehicle is detected, the light is turned on, and then it is turned off after a delay. When the fluorescent lamp is turned on, there is a start-up delay of 1-1.5 seconds, so the light is always behind the vehicle. At the same time, ordinary fluorescent lamps do not have dimming control and have the effect of spotlights, which can make people feel scared. Not suitable for underground garage lighting renovation.
When combined with a voice-activated switch for lighting, the start-up delay of fluorescent lamps is not suitable for frequent switching, so the common solution is to use incandescent lamps instead of fluorescent lamps. However, the luminous efficiency and lifespan of incandescent lamps are 5-6 times different from fluorescent lamps, and incandescent lamps are not suitable for frequent switching. The lighting control in underground garages using voice-activated switches is often in a disordered state, and a large area can be illuminated by pressing the horn. The energy-saving effect is not good, and frequent flashing makes people dizzy, not suitable for underground garage lighting renovation. Infrared sensor + LED lighting = dual-brightness LED smart tube (underground garage lighting renovation expert) was born.
When infrared sensor is used with LED. Because the LED lamps are convenient to dimming and there is no delay
